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Class 568/620 - And cyclic ether


Subclass of Class 568 - Organic compounds -- part of the class 532-570 series
Definition: Processes which include preparing the compound by reacting
No. of applications: 9
Last issue date: 05/03/2012


Application No.Application TitleIssue Date
20120108780METHOD FOR PRODUCING POLYOLS ON THE BASIS OF RENEWABLE RESOURCES
A method for producing a polyol, the method including:

(a) reacting at least one selected from the group consisting of an unsaturated natural fat, an unsaturated natural fatty acid, and a fatty acid ester with dinitrogen monoxide, to obtain...

05/03/2012
20120016049POLYOXYALKYLENE POLYOL OR MONOOL AND POLYURETHANE RESIN
An object of the present invention is to provide a polyoxyalkylene polyol and a polyoxyalkylene monool, capable of producing a urethane elastomer and a urethane foam which are sufficiently excellent in mechanical properties and moisture resistance.

01/19/2012
20110224396PROCESS FOR PREPARING POLYETHER POLYOLS
The present invention relates to a process for the catalytic preparation of polyetherols, wherein the power input by means of at least one stirrer and/or by means of at least one pump, based on the reactor volume, is in the range from 0.001 to 8.2 kW/m3....
09/15/2011
20110218324PREPARING POLYETHER ALCOHOLS
In a process for preparing a polyether alcohol d1) by reaction of a) at least one compound having at least three hydrogen atoms reactive with alkylene oxides and a molecular weight Mn of not more than 600 g/mol with b) an alkylene oxide by using c) a catalyst, said reac...
09/08/2011
20110077434PROCESS FOR PRODUCING POLYOXYALKYLENE ALKYL ETHERS
In the present invention, when polyoxyalkylene alkyl ethers are produced by adding propylene oxide to a linear alcohol in the presence of an alkali catalyst, the proportion of the alkali catalyst and the proportion of propylene oxide, per mole of active hydrogen of the ...
03/31/2011
20100125126PROCESS FOR THE PREPARATION OF POLYETHER POLYOLS
The present invention provides a process for conditioning double metal cyanide (DMC) catalysts, which are employed in the preparation of polyether polyols based on starter compounds having active hydrogen atoms, the preparation of polyether polyols using the conditioned...
05/20/2010
20090292147PROCESS FOR THE CONTINUOUS PRODUCTION OF POLYETHER ALCOHOLS
The invention relates to a process for the continuous preparation of polyether alcohols by reacting H-functional initiators with alkylene oxides using basic catalysts, wherein at least one initiator is metered with at least one alkylene oxide continuously into a back-mi...
11/26/2009
20080033214Process of Preparing Odour-Lean Polyether Polyol
Process of preparing odour-lean polyether polyol from crude polyether polyol prepared with the help of double metal cyanide complex catalyst which process comprises stripping the crude polyether polyol in a vessel at a temperature of from 50 to 200° C., at a ratio of t...
02/07/2008
20060189833Treatment of an aqueous mixture containing an alkylene oxide with an ion exchange resin
A process for separating an alkylene oxide from an aqueous mixture is provided in which no detectable dioxane byproduct is formed. An aqueous mixture containing an alkylene oxide is contacted with a carboxylic acid ion exchange resin to separate the alkylene oxide from ...
08/24/2006
 
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